Family description

Perennial herbs with rhizomes, often large-sized, usually aromatic.
Leaves simple, placed in two rows, with a ligule and an open sheath; margin entire, venetion parallel; stipules absent.
Inflorescences generally a terminal panicle, mostly on a leafless floral shoot.
Flowers bilateral symmetric. Sepals 3, connate into a tube, persistent. Petals 3, basally connate. Fertile stamen 1, (in the cultivated genera often petaloid), the remainder are infertile stamens and connate into a large, petaloid lip (labellum). Ovary inferior, 3-locular, style 1, lying close to the stamen and embraced by the thecae, stigma 1; ovules few to many in each locule.
Fruit a loculicidal capsule. Seeds arillate.

General info

Distribution About 53 genera with c. 1200 species, widespread in (sub)tropical regions of the world, especially in Indomalaya.
Ecology Mostly in forest understoreys, but some species very common in disturbed habitats.
Uses Medicinal, spices, ornamentals.
Similar to Maranthaceae, but these are never aromatic and have sepals more or less free.

Treated genera

  • Alpinia
  • Curcuma
  • Zingiber

Monocots.pdf

alpinia.jpg
Alpinia sp

curcuma.jpg
Curcuma sp

curcuma_flowers.jpg
Curcuma flowers
Perennial herbs with rhizomes, often large-sized, usually aromatic. Leaves simple, distichous, with a ligule and an open sheath; margin entire, venetion parallel; stipules absent. Inflorescences generally a terminal panicle, mostly on a leafless floral shoot. Flowers zygomorphic. Sepals 3, connate into a tube, persistent. Petals 3, basally connate. Fertile stamen 1, (in the cultivated genera often petaloid), the remainder of the androecium staminodial and connate into a large, petaloid lip (labellum). Ovary inferior, 3-locular, style 1, lying close to the stamen and embraced by the thecae, stigma 1; placentation axile, ovules few to many in each locule. Fruit a loculicidal capsule. Seeds arillate.